|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: RE: Al is on the money ... posted by Nickel Core on October 16, 2014 at 06:23:11:
I have tried diode bias on a CCS parafeed line stage, and am very pleased with the results. Not sure what effect that diode bias has on output impedance with a conventional gain stage. With parafeed, you can take advantage of the Western Electric output topology (parafeed cap returning to the top of the cathode), which I believe, would not increase the output impedance of the stage, since the AC signal path is restricted to just the tube, parafeed cap, and the OPT.
The benefit is that you can eliminate the cathode bypass cap. I know, we've just substituted a parafeed cap for a cathode bypass cap, however the parafeed cap is much smaller, and can therefore be of higher quality. I preferred this over battery bias as well.
twystd
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Al is on the money ... - twystd 12:00:05 10/16/14 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
